Your point stated more generally is that while C is the best tool for a wide set of use cases, for each of the one-time use cases of Perl there is now a better option
So, I read the their code of conduct, and nothing struck me as wrong (well, aside from that link back to the Contributor Covenant homepage, which is wrong, breathlessly hyperbolic, and politically charged).
Then I had a couple of realizations:
1. A sign on all public trash cans and dumpsters saying "MOTHERS, DO NOT THROW AWAY YOUR BABIES. YOU WILL BE PROSECUTED" would be correct, but it would be insulting because it implies the sign is necessary.
2. The existence of the code of conduct could be a dog-whistle. It could signal to the Caroline Adas of the world "We'll do whatever you want." Or even "Pease, please, please leave us alone. We'll do whatever you want". Both would be bad.
What actually made a difference, for me, was changing my work. My dad experienced this too. If you're depressed maybe you need to change your life, this is hard. It was for me.
It jelled with what I know anecdotally. Their Indian outsourcing is terrible, bad compensation, nothing close to Google or other tech companies in India. This is from a few years back.
What's bad about his benchmarks? I've cursory glanced at them before and didn't notice anything in particular (used to write gpu drivers for a living).
If you go to Google Scholar and look up the correlation of GRE score with completion, publications and professional success it will be positive. The fact that it isn't predictive within a programme is just a reflection of range restriction, same as how Google found that GPA had no reliable relationship on job performance in the set of people they actually hired.